Field guide
How to grow parsley: planting, care, and harvest guide
Parsley typically reaches first harvest in 70–90 days. This guide covers when to plant by USDA zone, common pests, harvest cues, and companion plants where relevant.
Open plannerWhen to plant parsley by USDA zone group
- USDA Zones 1–4 — May to June
- USDA Zones 5–6 — April to May
- USDA Zones 7–8 — March to April
- USDA Zones 9–10 — February to April
- USDA Zones 11–13 — October to February
Companion plants
Good companions: Tomato (Slicing), Asparagus, Sweet Corn
Avoid planting with: Lettuce, Mint
Harvest
When to pick
- Stems have three segments of leaves (tri-leaf clusters)
- Outer stems are long enough to cut at the base
- Flat-leaf varieties have more flavor; curly types are more decorative
How: Cut outer stems at the base of the plant. Always leave the inner cluster growing. Parsley is biennial — it flowers and goes to seed in year 2.
Storage: Stand in water in the fridge, or wrap in damp paper towel in a bag. Lasts 2 weeks. Freezes and dries well.
Common pests and problems
Parsleyworm (Black Swallowtail Caterpillar)
Signs: Large green/black/yellow striped caterpillar, stripped leaves
Control: These become beautiful swallowtail butterflies! Plant extra parsley and relocate caterpillars to dill or fennel if needed. Only treat if damage is severe.
Aphids
Signs: Clusters on new growth
Control: Water spray, insecticidal soap.
About this field guide
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